89189109 has 6 divisors (see below), whose sum is σ = 128828726. Its totient is φ = 59459400.

The previous prime is 89189083. The next prime is 89189117. The reversal of 89189109 is 90198198.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 4088484 = 9225^2 + 2022^2 .

It is not a de Polignac number, because 89189109 - 2¹¹ = 89187061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89189159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4954942 + ... + 4954959.

Almost surely, 2^89189109 is an apocalyptic number.

It is an amenable number.

89189109 is a deficient number, since it is larger than the sum of its proper divisors (39639617).

89189109 is a wasteful number, since it uses less digits than its factorization.

89189109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909907 (or 9909904 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The square root of 89189109 is about 9443.9985705209. The cubic root of 89189109 is about 446.7905118706.

It can be divided in two parts, 89189 and 109, that added together give a palindrome (89298).

The spelling of 89189109 in words is "eighty-nine million, one hundred eighty-nine thousand, one hundred nine".